CA972897A - Process for the production of high molecular weight polycondensates - Google Patents

Process for the production of high molecular weight polycondensates

Info

Publication number
CA972897A
CA972897A CA125,650A CA125650A CA972897A CA 972897 A CA972897 A CA 972897A CA 125650 A CA125650 A CA 125650A CA 972897 A CA972897 A CA 972897A
Authority
CA
Canada
Prior art keywords
production
molecular weight
high molecular
weight polycondensates
polycondensates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA125,650A
Other versions
CA125650S (en
Inventor
Lothar Buxbau
Gottfried Morawetz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
Original Assignee
Ciba Geigy AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ciba Geigy AG filed Critical Ciba Geigy AG
Application granted granted Critical
Publication of CA972897A publication Critical patent/CA972897A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/80—Solid-state polycondensation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
CA125,650A 1970-10-23 1971-10-20 Process for the production of high molecular weight polycondensates Expired CA972897A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT957370 1970-10-23
AT957270 1970-10-23

Publications (1)

Publication Number Publication Date
CA972897A true CA972897A (en) 1975-08-12

Family

ID=25605616

Family Applications (1)

Application Number Title Priority Date Filing Date
CA125,650A Expired CA972897A (en) 1970-10-23 1971-10-20 Process for the production of high molecular weight polycondensates

Country Status (8)

Country Link
AU (1) AU3464371A (en)
BE (1) BE773707A (en)
CA (1) CA972897A (en)
DD (1) DD94895A5 (en)
DE (1) DE2152245A1 (en)
FR (1) FR2111783B1 (en)
GB (1) GB1371505A (en)
NL (1) NL7114553A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161578A (en) * 1978-05-12 1979-07-17 Bepex Corporation Process for solid phase polymerization of polyester
US4205157A (en) * 1979-04-02 1980-05-27 The Goodyear Tire & Rubber Company Method for production of high molecular weight polyester with low catalyst level and low carboxyl content
FR2830788B1 (en) * 2001-10-12 2006-09-22 Tergal Fibres METHOD FOR MANUFACTURING HOLLOW BODIES, HOLLOW BODIES, PREFORMS AND BOTTLES OBTAINED BY THIS PROCESS
DE102008058313A1 (en) 2008-11-21 2010-06-02 Astegger, Johann Josef Postcondensation of plastic granules
DE102011052185A1 (en) 2011-07-27 2013-01-31 Johann Josef Astegger reactor assembly

Also Published As

Publication number Publication date
FR2111783A1 (en) 1972-06-09
AU3464371A (en) 1973-04-19
NL7114553A (en) 1972-04-25
BE773707A (en) 1972-01-31
DD94895A5 (en) 1973-01-05
GB1371505A (en) 1974-10-23
DE2152245A1 (en) 1972-04-27
FR2111783B1 (en) 1975-07-18

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